期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2002
卷号：XXXIV Part 4
出版社：Copernicus Publications
摘要：In this paper, we present a differential change-oriented model for the storage and communication of spatio -temporal information. The focus is on the development of model primitives and operators to support the aggregation of change over time and the propagation of change across resolution. Our investigation is motivated b y recent advances in image-based geospatial databases, with constantly increasing update frequencies, and diverse user communities performing queries of various levels o f detail. The primitives and operators presented here extend existing qualitative operators to support the management of quantitative and geometric information within a change-oriented spatio-temporal environment. We also show how the design o f our mo del results from 'change semantics' at different granularities. By doing so, advanced communication operations can be addressed within our model in an efficient way
